Visicalc was first. It was the killer app for use of the PC in the office.

There is no need to pay for a fancy spreadheet to use CHIRP. They are bloated and complicated. I am a free software fanatic, so I use Gnumeric. It has all the capabilities you need for use with CHIRP (and pretty much anything else). I'm a Linux user. Unfortunately for Windows user, new versions do not run on Windows.

If I were forced to use Windows or some other strange platform, I would use Google Sheets.